US Bridges

US-221 (SR-55) over Little Aucilla River

Fair

Madison County, Florida · 4.1 Mi.S.Of Jefferson Co. · Structure no. 350018

Built
1955
70 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
1,100
2022 count
Owner
State
State Highway Agency

About this bridge

US-221 (SR-55) over Little Aucilla River is a concrete culvert carrying US-221 (SR-55) over Little Aucilla River in Madison County, Florida. It was built in 1955, so it is 70 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,100 vehicles a day, roughly 12% of them trucks, projected to reach 1,908 by 2044. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesUS-221 (SR-55)
CrossesLittle Aucilla River
Location4.1 Mi.S.Of Jefferson Co.
RouteU.S. Route 221
CountyMadison County
StateFlorida
Coordinates30.50575, -83.63283
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.2 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,908 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-221 (SR-55) over Little Aucilla River built?

It was built in 1955, making it 70 years old in 2025.

What condition is US-221 (SR-55) over Little Aucilla River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does US-221 (SR-55) over Little Aucilla River carry?

About 1,100 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US-221 (SR-55) over Little Aucilla River?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns US-221 (SR-55) over Little Aucilla River?

It is owned by the State Highway Agency.